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June 14th, 2014, 02:46 PM
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Join Date: Mar 2012
Old Question Papers for JAM

Please provide me question paper for Joint Admission Test for admission in IIT colleges ?

Here I am giving you question paper for Joint Admission Test for admission in IIT colleges below :

Chemistry paper :
Molecular shape of SOCl2 is
Q.1
(A) square planar
(B) trigonal pyramidal
(C) triangular planar
(D) T-shaped

Number of three-centre two-electron (3c–2e) bonds present in diborane is
Q.2
(A) 2
(B) 4
(C) 6
(D) 8

The lattice energy of LiF calculated from Born-Landé equation is –1000 kJ mol–1. Assume that
for both LiF and MgO the Madelung constants, interionic distances and Born exponents have
the same value. The lattice energy of MgO in kJ mol–1 is
Q.3
(A) –4000
(B) –2000
(C) 2000
(D) 4000
The compound formed by dissolving elemental gold in aqua regia is
Q.4
(A) AuCl
(B) AuNO3
(C) H[AuCl4]
(D) H[Au(NO3)4]
Number of moles of ions produced by complete dissociation of one mole of Mohr’s salt in
water is
Q.5
(A) 3
(B) 4
(C) 5
(D) 6

The tetrachloro complexes of Ni(II) and Pd(II) respectively, are (atomic numbers of Ni and Pd
are 28 and 46 respectively)

Q.6
(A) diamagnetic and diamagnetic
(B) paramagnetic and paramagnetic
(C) diamagnetic and paramagnetic
(D) paramagnetic and diamagnetic
The total number of steps involved and number of beta particles emitted in the spontaneous
decay of

respectively, are
238
92 U
208
82 Pb
Q.7
(A) 8 and 6
(B) 14 and 6
(C) 6 and 8
(D) 14 and 8


Q.24 The half-life of any zero-order reaction is
(A) independent of concentration
(B) proportional to inverse of concentration
(C) proportional to concentration
(D) proportional to square of the concentration


(a) Identify the most acidic compound from the following: CH3−CH3, CH2=CH2 and
CH≡CH, and justify your answer. Draw overlap of the orbitals to show bonding in
the most acidic compound using the concept of hybridization.

(9)

(b) Write a balanced chemical equation to represent acid-base reaction of orthoboric acid
in water.
Addition of ethylene glycol to aqueous orthoboric acid enhances its acidity. Explain
the above statement using appropriate chemical equation





Attached Files
File Type: pdf IIT JAM physics paper-1.pdf (647.2 KB, 91 views)
File Type: pdf IIT JAM chemistry paper-2.pdf (606.0 KB, 73 views)

Last edited by Neelurk; April 1st, 2020 at 12:05 PM.
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